MCQ
381. Pick up the correct statement from the following:--
An extra width of 7.5 cm ballast is provided on outside a curve if track is laid with short welded rails
An extra width of 7.5 cm ballast is provided on outside a curve sharper than 3° on B.G. and M.G. tracks
An extra width of 15 cm ballast is provided on each shoulder if the track is laid with welded rails
All the above
382. On either side of the centre line of rails, a cant of 1 in 20 in the sleeper is provided for a distance of--
150 mm
165 mm
175 mm
185 mm
383. Normally maximum cant permissible in Meter Gauge is--
75 mm
90 mm
140 mm
165 mm
384. Staggered rail joints are generally provided--
On curves
On tangents
On bridges
In tunnels
385. The arrangement of rails which permit trains to cross another track and also to divert to the other track, is called--
Diamond crossing
Diamond crossing with single slip
Diamond crossing with double slip
Cross over
386. A CST-9 sleeper consists of--
Two inverted triangular pots on either side of rail seat
A central plate with a projected key and box on the top of plate
A tie bar and 4 cotters to connect two cast iron plates
All the above
387. In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of 3" on a gradient of 1 in 250 will have the permissible gradient of--
1 in 257
1 in 357
1 in 457
1 in 512
388. Pandrol clips cannot be used with--
Wooden sleepers
Concrete sleepers
CST-9 sleepers
Steel trough sleepers
389. The following tests are conducted for rails: (i) Falling weight test (ii) Tensile test (iii) Hammer test The compulsory tests are--
Only (i)
(i) and (ii)
(ii) and (iii)
(i) and (iii)
390. Consider the following statements about concrete sleepers. 1. They improve the track modulus. 2. They have good scrap value. 3. They render transportation easy. 4. They maintain the gauge quite satisfactorily. Of these statements--
1 and 2 are correct
2 and 3 are correct
3 and 4 are correct
1 and 4 are correct
391. Type of switch rails generally adopted for modern track, is--
Straight switch
Curved switch
Loose heel switch
Bent switch
392. Constant head premeameter দিয়ে কোন ধরনের soil-এ permeability নির্ণয় করা হয়।
Falling head খারা silt এবং Clay soil-এর permeability নির্ণয় কা হয়।
উত্তর সহ কয়েকটি অনুরুপ গুরুত্বপূর্ণ প্রশ্ন
1. Constant Head permeameter দিয়ে কোন ধরনের soil এর Permeability নির্ণয় করা হয় Coarse Sand.
2. প্রবাহীর দুই বিন্দুর উল্লম্ব দূরত্বের পার্থক্যকে কী বলে- পজিশন হেড।
3. Reynolds number কত হলে মাটির মধ্যে পানির প্রবাহ সমান্তরাল হবে1 বা 1এর কম।
4. কোনটিকে নিরপেক্ষ প্রেসার বলে - পোর ওয়াটার প্রেসার।
5. প্রবাহীর দুই কিন্দুর প্রিজমেটিক লেভেল পার্থক্যকে বলে- hydraulic head.
course sand
fine sand
sit
clay
393. Pick up the incorrect statement from the following-
Sleepers hold the rails at proper gauge on straights
Sleepers provide stability to the permanent way
Sleepers act as an elastic cushion between rails and ballast
None of these
394. For providing the required tilt of rails, adazing of wooden sleepers, is done for--
Bull headed rails
Double headed rails
Flat footed rails
Any type of rails
395. Staggered rail joints are generally provided-
On curves
On tangents
On bridges
In tunnels
396. The arrangement of rails which permit trains to cross another track and also to divert to the other track, is called--
Diamond crossing
Diamond crossing with single slip
Diamond crossing with double slip
Cross over
397. Clay soil-t particle size silt-এর চেয়ে-
সবচেয়ে বড় particle size gravel
উত্তর সহ কয়েকটি অনুরুপ গুরুত্বপূর্ণ প্রশ্ন
1. Clay soil if particle size silt এর চেয়ে ছোট।
2. Silt wit size range - 0.002 mm to 0.06 mm.
3. Clay size range - 0,002 mm .ক্যান্টনমেন্ট অরিদপ্তর ৩০.১০.২০২১
4. Sand 43 size range - 0.075 mm to 4.75 mm.
5. Gravel এর size range 4.75 mm to 30 mm.
বড়
ছোট
সমান
কোনোটিই নয়
398. On Indian Railways, number of a crossing is defined as--
Sine of angle of crossing
Cosine of angle of crossing
Tangent of angle of crossing
Contingent of angle of crossing
399. If n is length of a rail in metres, the number of sleepers per rail length generally varies from--
n to (n+2)
(n+2) to (n+4)
(n+3) to (n+6)
(n+4) to (n+5)
400. Total effective bearing area of both the bowls of a pot sleeper, is-
Slightly more than that of a wooden sleeper
Slightly less than that of a wooden sleeper
Equal to that of a wooden sleeper
None of these